This n8n workflow facilitates secure management and digital signing of PDF documents using cryptographic certificates. Designed for seamless integration with WordPress or similar platforms, it automates key generation, certificate creation, PDF signing, and document download processes, ensuring efficiency and security.
The process begins with webhook triggers to handle PDF and key uploads or generate cryptographic key pairs and certificates. The ‘Validate’ nodes verify required parameters before proceeding. Key and certificate files are generated using the ‘Generate Keys’ node, which employs cryptographic algorithms to create a certificate with specified subject details, validity period, and self-signed attributes. These files are saved locally.
For signing PDFs, the workflow reads the uploaded or generated PDF and certificate files, adds placeholders for signatures, and then applies the private key to digitally sign the document using the ‘Sign PDF’ node. After signing, the PDF and certificate files are stored for download or further processing.
Practical use cases include secure document management for legal, financial, or healthcare sectors where electronic signatures and certified documents are required. This workflow automates the entire lifecycle from key creation to signed document delivery, reducing manual effort and enhancing security.
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